Answer:
30
Step-by-step explanation:
We are given the expression:
[tex]8-4x+5y[/tex]
and asked to evaluate given x=2 and y=6.
Therefore, we must substitute 2 for x and 6 for y.
[tex]8-4(2)+5(6)[/tex]
Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.
Multiply 4 and 2.
4*2= 8
[tex]8-8+5(6)[/tex]
Multiply 5 and 6.
5*6=30
[tex]8-8+30[/tex]
Subtract 8 from 8.
8-8=0
[tex]0+30[/tex]
Add 0 and 30.
[tex]30[/tex]
The expression 8-4x+5y when evaluated at x=2 and y=6 is equal to 30.
